# Define your item pipelines here
#
# Don't forget to add your pipeline to the ITEM_PIPELINES setting
# See: https://docs.scrapy.org/en/latest/topics/item-pipeline.html


# useful for handling different item types with a single interface
from itemadapter import ItemAdapter
from scrapy.exporters import JsonLinesItemExporter


class SunPipeline:
    def __init__(self):
        self.fb = open('sun_wz.json', 'wb')
        self.exporter = JsonLinesItemExporter(self.fb, ensure_ascii=False, encoding="utf-8")

    def process_item(self, item, spider):
        self.exporter.export_item(item)
        return item

    def close_spider(self,spider):
        self.fb.close()
        print('数据爬取完毕！')
